Machine for tearing waste bags and separating out plastic film b

Details Machine for tearing waste bags and separating out plastic film b Machine for tearing waste bags and separating out plastic film b

1976-04-06

1978-01-10

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

241DIG38, B02C 2302

Patent

active

040675068

ABSTRACT:
A machine for tearing open small bags containing city solid waste material and for separating out plastic film material and/or the bags, includes an endless belt conveyor which carries on the surface thereof a plurality of aculei which engage bags containing waste material placed on the surface of the conveyor belt. The belt follows a path of a first straight or rectilineal length and a second or return straight or rectilineal length.The transition between the first straight length and the second straight length follows a mild curve about a drive pulley having a relatively large diameter, whereas the transition between the return straight length and the first straight length follows a relatively sharp curve about a drive pulley having a relatively small diameter so that such transition is sufficiently sudden additionally, a plurality of serrated blades are pivotally carried on a shaft above the belt conveyor so that the blades are placed in proximity to the surface of the belt for engaging and tearing the bag material carried thereon. Hook-like members having a hook portion bent in a direction opposite to the direction of travel of the belt may be substituted for the aculei members for engaging the bag material.

REFERENCES:
patent: 2005758 (1935-06-01), Shiley
patent: 2711834 (1955-06-01), Broberg et al.
patent: 3209803 (1965-10-01), Feterl
patent: 3749324 (1973-07-01), Hyde

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